Portable tower.



J. L. & V. G. FOGLE.

PORTABLE TOWER. APPLICATION FILED SEPT. 9, 1913;

1,095,391 Patented May 5, 1914.

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INVENTOR COLUMBIA PLANnalAPr-l (Sm-WASHINGTON D c J. L. & V. G. POGLE.

PORTABLE TOWER.

APPLICATION riLED SEPT. 9, 191a.

' 1,095,391. Patented May 5, 1914. V

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WITNESSE QMQM Wm m zf gz UNITED STATES PATENT @FFTQE.

JOHN L. FOGLE AND VICTOR C. FOGLE, OF PUEBLO, COLORADO; SAID JOHN L. FOGLE ASSIG-NOR T'O SAID VICTOR C. FGGLE.

PORTABLE TOWER.

Specification of Letters Patent.

Application filed September 9, 1913.

Patented May 5, 1914. Serial No. 788,882.

To all whom it may concern:

Be it known that we, JOHN L. FooLE and Vic-tron C. Focus, citizens of the United States of America, and residents of Pueblo, in the county of Pueblo and State of Colorado, have invented certain new and useful Improvements in Portable Towers, of which the following is a specification.

This invention relates to portable towers and an object of the invention is to provide an apparatus for elevating and lowering the section of a tower, means being provided for bracing the said tower and making the same comparatively rigid while aifording the collapsible feature so necessary to cornpactness, when the same is stored.

A further object of this invention is to provide novel means for permitting the adjustment of the corners of the skeleton tower in order that a lazy tong construction of the side thereof may move as the tower is elevated, thus causing the said tower or the corners thereof to approach and recede ac cording to the direction of movement of the tower operating mechanism.

A still further object of this invention'is to provide a tower in which the corner posts automatically adjust themselves and in which the structure is strong and eflicient as well as comparatively inexpensive to produce and maintain.

With the foregoing and other objects in view, the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, and in which- Figure 1 illustrates a view in elevation of a tower embodying the invention; Fig. 2 illustrates a view in elevation of the cage and the platform associated therewith; Fig. 3 illustrates a view in elevation of the tower in its collapsed position; Fig. 4: illustrates a top plan view of the cage hoisting mechanism, the cage being omitted; and Fig. 5 illustrates a detail view of the base for the telescopic tube. Fig. 6 illustrates a plan view of a collar constructed in accordance with our invention. Fig. 7, is an end view of the same.

In these drawings 6 denotes a truck which may be of any appropriate type, here shown as of the horseless vehicle type, the same having a bed 7 carrying brackets 8 adapted to support the guide rods 9 which guide rods are diagonally disposed and extend from the corners of the body toward the center thereof and are connected to a housing 10 which is adapted as a support for the telescopic tube, to be presently explained. The rods 9 The links or levers 16 are arranged in pairs at each side of the structure forming the tower, each pair of links being pivoted together centrally and the lower pair of links being pivotally connected to ears 12 of the appropriate collar 11, each collar being slidable on a rod. The opposite ends of the links are pivoted to succeeding pairs of links, the links .of each succeeding pair being pivotally connected together at their centers to form a lazy tong construction, as shown in the drawing. As stated, each side of the tower has the same construction and when the tower is elevated, it forms a framelike support for a cage 17 which is mounted on a platform 18, the said cage being provided with a bridge 19 which is hinged to it and is designed for the purpose of being applied to a window or door opening in the building to permit the escape of the occupants thereof. In order to add to the rigidity of the structure, the ends of the links which are pivoted together at their outer ends are coupled to the ends of the pivoted links on the side by angular brackets 15, the angular brackets forming corners for the several sides of the tower.

The platform 18 has on its under side a piston rod 20 which operates in a telescopic tube 21 and the said telescopic tube 21 is associated with a plurality of telescopic tubes which may be projected in the manner shown in Fig. 1 or may be nested as shown in Fig. 3. The base or master tube 22 has a head 23 provided with an inlet pipe sure being admitted through the pipe 24: will operate to force the tubes outward or upward, thus projecting the tubes and elevating the platform in the manner shown in Fig. 1, whereas the tower may be lowered by closing the passage of the pipe 24; and opening the pipe to permit the escape of the pressure medium which has been admitted through the tube 2%. The platform 18 has a series of plates 26 on its under surface pro vided with apertured' ears 27 to which the upper ends of the levers or links are pivoted.

From an inspection of the drawing and consideration of the specification, it will be obvious that the operation of the tower depends solely upon the supply of fluid under pressure for elevating the said tower and the escape of the said fluid for lowering the said tower.

We claim- In a portable tower, a base, brackets secured to the base, rods supported by the brackets and held in spaced relation with the base, a collar on each of the rods, each of the collars having apertured lugs extending therefrom, lazy tongs supported between the lugs of the collars, a platform supported by one end of the lazy tongs, rods supported in spaced relation with the under side of the platform, collars operating on the rods, a 30 means for forming a connection. between the collars and the lazy tongs, whereby movement of the lazy tongs will produce a relative movement of the collars, a telescopic tube housed by the lazy tongs, a piston in the tube, and means for supplying air under pressure to the piston for operating the lazy tongs.

In testimony whereof, we hereunto affix our signatures in the presence of two wit- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

